Conveyor for stacking

Abstract

The utility model relates to conveying equipment used on a packaging production line, in particular to a stacking waiting conveyor, and solves the problems that the width of an assembly line rack is increased, the cost is increased and the assembly line rack is difficult to install due to the fact that a stacker gripper of an existing grabbing mechanism is prone to colliding with other parts on the two sides of the assembly line rack. The machine frame is divided into the front conveying area and the rear conveying area in the material conveying direction, the front conveying rollers are evenly distributed in the front conveying area, the rear conveying rollers are evenly distributed in the rear conveying area, the front end conveying motor and the rear end conveying motor are installed at the bottom of the machine frame, and the front end conveying motor synchronously drives the front conveying rollers to rotate through the front end. The rear-end conveying motor drives the rear conveying rollers to rotate through the rear-end synchronous belt, a first bag pushing rod is arranged between every two adjacent rear conveying rollers, a first bag pushing air cylinder is arranged at the bottom of the rack, and a piston rod of the first bag pushing air cylinder is connected with the first bag pushing rods. The top end face of the first bag pushing rod is lower than the plane formed by the highest axial lines of the two adjacent rear conveying rollers.

Description

Technical Field

[0001] The utility model relates to a conveying device used on a packaging production line, in particular to a to-be-coded conveyor. Background Art

[0002] Industrial assembly lines usually have multiple workstations spaced at intervals on both sides of a conveyor belt composed of multiple conveyor rollers. When the product process at one workstation is completed, the conveyor belt is used to transport the product to the next workstation for processing. Usually, a product needs to go through multiple assembly lines to complete processing. The transfer of products between adjacent two assembly lines relies on a grasping mechanism to grab the product and then transfer it to another assembly line. Sometimes a product can be completed with only one assembly line. At the end of the assembly line, it is also necessary to rely on a grasping mechanism to grab the product and place it outside the assembly line for subsequent operations such as packing.

[0003] Commonly used grasping mechanisms are usually palletizer grippers or manipulators. Manipulators have high precision and strong versatility, but they are expensive and are only used in assembly lines with high requirements for precision and production efficiency. Most assembly lines usually use palletizer grippers to transfer products. When the palletizer gripper moves downward from above the assembly line to grab the product, the palletizer gripper is prone to collide with other components on both sides of the assembly line frame, such as sensors installed on both sides of the frame for detecting products. Therefore, the assembly line frame must be designed very wide, generally twice the width of the palletizer gripper, so as to avoid collisions with other components during grasping. However, this leads to an increase in the space occupied by the assembly line frame, and the conveyor rollers of the assembly line also need to be lengthened accordingly to adapt to the frame, resulting in an increase in the overall manufacturing cost. If the factory space is cramped, it will also cause difficulties in installing the assembly line. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the palletizer gripper of the existing grasping mechanism is prone to collide with other components on both sides of the assembly line frame, resulting in an increase in the width of the assembly line frame, an increase in cost and difficulties in installation, and to provide a to-be-coded conveyor.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A to-be-coded conveyor includes a frame and a plurality of conveyor rollers installed on the frame; a motor is installed on the frame, and the motor drives the conveyor rollers to rotate through a synchronous belt. The special feature is that it further includes a pushing and packing structure.

[0007] On the frame, a front conveying area and a rear conveying area are sequentially arranged along the material conveying direction.

[0008] The conveying rollers include a plurality of front conveying rollers evenly arranged in the front conveying area and a plurality of rear conveying rollers evenly arranged in the rear conveying area;

[0009] The motors include a front-end conveying motor and a rear-end conveying motor installed at the bottom of the frame. The synchronous belts include a front-end synchronous belt and a rear-end synchronous belt. The output end of the front-end conveying motor drives all the front conveying rollers to rotate through the front-end synchronous belt, and the output end of the rear-end conveying motor drives all the rear conveying rollers to rotate through the rear-end synchronous belt;

[0010] The pushing structure includes a first pushing rod arranged between adjacent rear conveying rollers and a first pushing cylinder installed at the bottom of the frame. The piston rod of the first pushing cylinder is connected to the first pushing rod. When in the non-working state, the top surface of the first pushing rod is lower than the plane formed by the highest axial lines of two adjacent rear conveying rollers.

[0011] Further, the pushing structure further includes a second pushing rod arranged between adjacent front conveying rollers and a second pushing cylinder installed at the bottom of the frame. The piston rod of the second pushing cylinder is connected to the second pushing rod. When in the non-working state, the top surface of the second pushing rod is lower than the plane formed by the highest axial lines of two adjacent front conveying rollers.

[0012] Further, the front conveying rollers include a small-diameter section arranged in the middle and large-diameter sections arranged at both ends of the small-diameter section. The small-diameter section is used to cooperate with the front-end synchronous belt;

[0013] The rear conveying rollers have the same structure as the front conveying rollers. The small-diameter section of the rear conveying rollers is used to cooperate with the rear-end synchronous belt.

[0014] Further, two first pushing rods are arranged between adjacent rear conveying rollers. The first pushing rod includes a vertical rod and a cross rod perpendicular to the vertical rod and arranged at the top of the vertical rod. The two first pushing rods are symmetrically arranged on both sides of the rear-end synchronous belt;

[0015] Two second pushing rods are arranged between adjacent front conveying rollers, and the second pushing rods have the same structure as the first pushing rods. The two second pushing rods are symmetrically arranged on both sides of the front-end synchronous belt.

[0016] Further, a first connecting base is arranged between the first pushing rod and the first pushing cylinder. The bottom ends of the vertical rods of all the first pushing rods are connected to the first connecting base. The piston rod of the first pushing cylinder is connected to the first pushing rod through the first connecting base;

[0017] A second connecting base is arranged between the second pushing rod and the second pushing cylinder. The bottom ends of the vertical rods of all the second pushing rods are connected to the second connecting base. The piston rod of the second pushing cylinder is connected to the second pushing rod through the second connecting base.

[0018] Furthermore, the frame comprises a first front end redirecting wheel, a second front end redirecting wheel and a front end tensioning wheel, which are arranged in sequence opposite to the material conveying direction, wherein the outer edges of the first front end redirecting wheel and the second front end redirecting wheel abut against the outer wall of the front end synchronous belt, the outer edge of the front end tensioning wheel abuts against the inner wall of the front end synchronous belt, and the front end tensioning wheel is arranged in a slide groove on the frame.

[0019] Furthermore, a rear end redirecting wheel and a rear end tensioning wheel are sequentially arranged on the frame along the material conveying direction, the outer edge of the rear end redirecting wheel abuts against the outer wall of the rear end synchronous belt, the outer edge of the rear end tensioning wheel abuts against the inner wall of the rear end synchronous belt, and the rear end tensioning wheel is arranged in a slide groove on the frame.

[0020] Furthermore, two front-end photoelectric detection boards are arranged on the frame at corresponding positions on both sides of the front conveying area, and two rear-end photoelectric detection boards are arranged at corresponding positions on both sides of the rear conveying area.

[0021] Furthermore, a limit plate is provided on the frame at the end close to the rear conveying area.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] (1) The utility model proposes a code-waiting conveyor including a frame, wherein the frame is provided with a front conveying area and a rear conveying area in sequence along the material conveying direction, wherein a plurality of evenly distributed front conveying rollers are provided in the front conveying area, and the front conveying rollers and the output end of the front conveying motor provided at the bottom of the frame are driven by a front synchronous belt to rotate together, and a plurality of evenly distributed rear conveying rollers are provided in the rear conveying area, and the rear conveying rollers and the output end of the rear conveying motor provided at the bottom of the frame are driven by a rear synchronous belt to rotate together, a first bag pushing rod is provided between adjacent rear conveying rollers, and a first bag pushing air rod is installed at the bottom of the frame. Cylinder, the piston rod of the first package pushing cylinder is connected to the first package pushing rod. When it is in a non-working state, the top end surface of the first package pushing rod is lower than the plane formed by the highest axial lines of the two adjacent rear conveying rollers. In this way, after the product is transported from the front conveying area to the rear conveying area, the piston rod of the first package pushing cylinder moves upward, and the product is lifted by the first package pushing rod. In this way, the vertical space can be utilized to stagger the product at a height that will cause it to collide with other components installed on both sides of the frame, so that no collision will occur when the palletizer gripper grabs it, thereby eliminating the need to widen the entire frame, saving cost and space.

[0024] (2) In the code-waiting conveyor proposed by the utility model, a second package pushing rod can be arranged between adjacent front conveying rollers, and the lifting of the second package pushing rod is controlled by the second package pushing cylinder. In this way, double-station lifting can be achieved together with the first package pushing rod. In combination with two grippers, double-station grabbing can be achieved, thereby improving efficiency.

[0025] (3) The code - waiting conveyor proposed by the present utility model is provided with two front - end redirecting wheels and one front - end tensioning wheel on the frame. The three cooperate to achieve the tensioning of the front - end synchronous belt. There is also a rear - end redirecting wheel and a rear - end tensioning wheel arranged on the frame, and the two cooperate to achieve the tensioning of the rear - end synchronous belt. Such a setting increases the friction between the synchronous belt and the conveying rollers, ensures no slipping, and thus improves the running stability of the conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. 6 is a perspective structural schematic diagram of the first embodiment of the code - waiting conveyor of the present utility model in a working state;

[0027] Figure 2 FIG. 10 is a perspective structural schematic diagram of the second embodiment of the code - waiting conveyor of the present utility model in a non - working state;

[0028] Figure 3 FIG. 14 is a top view of the first embodiment of the present utility model;

[0029] Figure 4 is Figure 3 a sectional view taken along the line A - A of;

[0030] Figure 5 is Figure 3 a left view (rotated counterclockwise by 90°) of.

[0031] The description of the reference numerals is as follows:

[0032] 1 - frame, 2 - front conveying roller, 3 - rear conveying roller, 4 - front - end conveying motor, 5 - rear - end conveying motor,

[0033] 6 - front - end synchronous belt, 7 - rear - end synchronous belt, 8 - first pushing package cylinder, 9 - first pushing package rod, 10 - first connecting base, 11 - second pushing package cylinder, 12 - second pushing package rod, 13 - second connecting base, 14 - first front - end redirecting wheel, 15 - second front - end redirecting wheel, 16 - front - end tensioning wheel, 17 - rear - end redirecting wheel, 18 - front - end photoelectric detection plate, 19 - rear - end photoelectric detection plate, 20 - limiting plate, 21 - rear - end tensioning wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0035] Referring to Figure 1 , 3 , 4, 5, the first embodiment of the code - waiting conveyor of the present utility model includes a frame 1. Along the material conveying direction on the frame 1, a front conveying area and a rear conveying area are sequentially arranged. A plurality of front conveying rollers 2 are evenly arranged in the front conveying area. The structure of the front conveying rollers 2 is as Figure 1As shown in the figure, it includes a middle small-diameter section and large-diameter sections arranged at both ends of the small-diameter section. At the bottom of the frame 1, a front-end conveying motor 4 is installed. The output end of the front-end conveying motor 4 is connected to a front-end synchronous belt 6. The small-diameter sections of all the front conveying rollers 2 are engaged with the front-end synchronous belt 6. When the output end of the front-end conveying motor 4 rotates, it will drive all the front conveying rollers 2 to rotate together. And the large-diameter sections located at both ends of the small-diameter section can provide limitation for the front-end synchronous belt 6 to prevent it from slipping out.

[0036] When the front-end synchronous belt 6 is in use, in order to better transmit power, the whole synchronous belt must be tensioned so that the friction force between it and the front conveying rollers 2 can reach the maximum. Otherwise, slipping will occur. Therefore, a first front-end redirecting wheel 14, a second front-end redirecting wheel 15, and a front-end tensioning wheel 16 are sequentially arranged on the frame 1 against the material conveying direction. The outer edges of the first front-end redirecting wheel 14 and the second front-end redirecting wheel 15 are in contact with the outer wall of the front-end synchronous belt 6, and the outer edge of the front-end tensioning wheel 16 is in contact with the inner wall of the front-end synchronous belt 6. And the front-end tensioning wheel 16 is arranged in a chute on the frame 1. The position of the front-end tensioning wheel 16 in the chute can be adjusted to ensure the tension of the front-end synchronous belt 6. Through the cooperation of the three, the effective tension of the front-end synchronous belt 6 can be realized, ensuring that there is no slipping when transporting products. Similarly, for the better transmission of power of the rear-end synchronous belt 7, a rear-end redirecting wheel 17 and a rear-end tensioning wheel 21 are sequentially arranged on the frame 1 along the material conveying direction. The outer edge of the rear-end redirecting wheel 17 is in contact with the outer wall of the rear-end synchronous belt 7, and the outer edge of the rear-end tensioning wheel 21 is in contact with the inner wall of the rear-end synchronous belt 7. And the rear-end tensioning wheel 21 is arranged in a chute on the frame 1. The position of the rear-end tensioning wheel 21 in the chute can be adjusted to ensure the tension of the rear-end synchronous belt 7. Through the cooperation of the two, the effective tension of the rear-end synchronous belt 7 is realized.

[0037] In order to detect whether the product is in place during transportation in the front conveying area, two front-end photoelectric detection plates 18 are arranged at corresponding positions on both sides of the front conveying area.

[0038] In the rear conveying area, a plurality of rear conveying rollers 3 are also evenly arranged. The structure of the rear conveying rollers 3 is the same as that of the front conveying rollers 2, and both include a middle small-diameter section and large-diameter sections arranged at both ends of the small-diameter section. The rear-end synchronous belt 7 is engaged with the small-diameter section. In this way, the rear-end synchronous belt 7 will also be limited by the large-diameter sections of the rear conveying rollers 3 to prevent it from slipping out of the rear conveying rollers 3. At the bottom of the frame 1, a rear-end conveying motor 5 is also installed. The output end of the rear-end conveying motor 5 drives all the rear conveying rollers 3 to rotate together through the rear-end synchronous belt 7.

[0039] In order to detect whether the product is in place during transportation in the rear conveying area, two rear-end photoelectric detection plates 19 are arranged at corresponding positions on both sides of the rear conveying area. Since the rear conveying area is already the last section of the whole conveyor, in order to limit the movement of the product, a limiting plate 20 is arranged at the end of the frame 1 close to the rear conveying area.

[0040] A first pushing bag rod 9 is arranged between adjacent rear conveying rollers 3, and two first pushing bag rods 9 are arranged between two adjacent rear conveying rollers 3. The two first pushing bag rods 9 are symmetrically arranged on both sides of the rear synchronous belt 7. A first pushing bag cylinder 8 is arranged at the bottom of the rack 1. A first connecting base 10 is arranged between the first pushing bag rod 9 and the first pushing bag cylinder 8. The first pushing bag rod 9 includes a vertical rod and a cross rod perpendicular to the vertical rod and arranged at the top end of the vertical rod. The bottom ends of the vertical rods of all the first pushing bag rods 9 are connected to the first connecting base 10, and the piston rod of the first pushing bag cylinder 8 is connected to the first pushing bag rod 9 through the first connecting base 10. This connection method can use only one cylinder to control the lifting of multiple first pushing bag rods 9, with a simple structure and low cost. When in a non-working state, the top surface of the first pushing bag rod 9 is lower than the plane formed by the highest axial lines of two adjacent rear conveying rollers 3, and the stroke of the first pushing bag cylinder 8 is between 200 and 300 mm. Such a cylinder stroke not only meets the anti-collision requirement but also does not cause the cycle time of the entire grasping process to be extended due to too long a stroke.

[0041] In the use of the first embodiment, when the product enters the conveyor, it first enters the front conveying area. The front conveying motor 4 rotates to drive the product to move towards the rear conveying area. Before the product enters the rear conveying area, the rear conveying motor 5 rotates to drive the product into the rear conveying area. When the product reaches the designated position in the rear conveying area, the rear conveying motor stops rotating. At this time, the front conveying motor 4 still rotates to drive the second batch of products into the front conveying area. When the second batch of products reaches the designated position in the front conveying area, the front conveying motor 4 stops rotating to let the second batch of products slow down and stop on the front conveying area. The function of the front conveying area at this time is product reserve, ensuring the product supply in the rear conveying area and thus ensuring efficiency. At the same time, the first pushing bag cylinder 8 works to lift the first pushing bag rod 9, thereby driving the product to rise. The gripper of the palletizer reaches the preset position in advance and is in an open state. The first pushing bag rod 9 drives the product to rise to the position of the gripper of the palletizer, and the gripper grabs the product. After the products on the rear conveying area are all grabbed, the first pushing bag cylinder 8 drives the first pushing bag rod 9 to move downward until the top surface of the first pushing bag rod 9 is lower than the plane formed by the highest axial lines of two adjacent rear conveying rollers 3, so as not to affect the normal conveying of the products.

[0042] The second embodiment of the present utility model is as Figure 2As shown in the figure, compared with the first embodiment, a second pusher rod 12 is provided between adjacent front conveyor rollers 2, and two second pusher rods 12 are provided between adjacent two front conveyor rollers 2. The two second pusher rods 12 are symmetrically arranged on both sides of the front synchronous belt 6. The structure of the second pusher rod 12 is the same as that of the first pusher rod 9, both including a vertical rod and a cross rod perpendicular to the vertical rod and arranged at the top end of the vertical rod. A second pusher cylinder 11 is provided at the bottom of the frame 1. A second connecting base 13 is provided between the second pusher rod 12 and the second pusher cylinder 11. The bottom ends of the vertical rods of all the second pusher rods 12 are connected to the second connecting base 13. The piston rod of the second pusher cylinder 11 is connected to the second pusher rod 12 through the second connecting base 13. The second pusher cylinder 11 is the same as the first pusher cylinder 8, and its stroke is also between 200 - 300 mm.

[0043] In this way, a set of pusher structures are configured in the front conveying area and the rear conveying area respectively, and two sets of palletizing machine grippers are equipped, so that double-station grasping can be formed to improve the grasping efficiency. When the second embodiment is used, the front conveying motor 4 and the rear conveying motor 5 operate simultaneously. When the products on the front and rear conveying areas reach the designated positions, the front conveying motor 4 and the rear conveying motor 5 stop rotating. The first pusher cylinder 8 and the second pusher cylinder 11 work to lift the products located on the front conveying area and the rear conveying area. At this time, the grippers on the two sets of palletizing machines have already reached the set positions and are in the open state of the grippers. The first pusher rod 9 and the second pusher rod 12 respectively lift the products in the two conveying areas to the gripper positions. The two palletizing machine grippers respectively grasp the products in the two areas. After the grasping is completed, the first pusher cylinder 8 and the second pusher cylinder 11 respectively drive the first pusher rod 9 and the second pusher rod 12 to move downward until the top surface of the first pusher rod 9 is lower than the plane formed by the highest axial lines of adjacent two rear conveyor rollers 3, and the top surface of the second pusher rod 12 is lower than the plane formed by the highest axial lines of adjacent two front conveyor rollers 2. Then, the next product transportation and grasping operation can be carried out. Compared with the first embodiment, the number of grasped products is more and the efficiency is higher.

[0044] The embodiments described above are only descriptions of the specific implementation manners of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A code-waiting conveyor, comprising a frame (1) and a plurality of conveying rollers mounted on the frame (1); a motor is mounted on the frame (1), and the motor drives the conveying rollers to rotate through a synchronous belt, characterized in that: Also includes a push bag structure; The frame (1) is provided with a front conveying area and a rear conveying area in sequence along the material conveying direction; The conveying rollers include a plurality of front conveying rollers (2) evenly distributed in the front conveying area and a plurality of rear conveying rollers (3) evenly distributed in the rear conveying area; The motor comprises a front-end conveying motor (4) and a rear-end conveying motor (5) installed at the bottom of the frame (1); the synchronous belt comprises a front-end synchronous belt (6) and a rear-end synchronous belt (7); the output end of the front-end conveying motor (4) drives all the front conveying rollers (2) to rotate through the front-end synchronous belt (6); and the output end of the rear-end conveying motor (5) drives all the rear conveying rollers (3) to rotate through the rear-end synchronous belt (7); The bag pushing structure comprises a first bag pushing rod (9) arranged between adjacent rear conveying rollers (3) and a first bag pushing cylinder (8) installed at the bottom of the frame (1); the piston rod of the first bag pushing cylinder (8) is connected to the first bag pushing rod (9); when in a non-working state, the top end surface of the first bag pushing rod (9) is lower than the plane formed by the highest axial lines of the two adjacent rear conveying rollers (3).

2. The code-waiting conveyor according to claim 1 is characterized in that: The bag pushing structure also includes a second bag pushing rod (12) arranged between adjacent front conveying rollers (2) and a second bag pushing cylinder (11) installed at the bottom of the frame (1); the piston rod of the second bag pushing cylinder (11) is connected to the second bag pushing rod (12); when in a non-working state, the top end surface of the second bag pushing rod (12) is lower than the plane formed by the highest axial lines of the two adjacent front conveying rollers (2).

3. The code-waiting conveyor according to claim 1 or 2, characterized in that: The front conveying roller (2) comprises a small diameter section arranged in the middle and large diameter sections arranged at both ends of the small diameter section, the small diameter section being used to cooperate with the front end synchronous belt (6); The rear conveying roller (3) has the same structure as the front conveying roller (2), and the small diameter section of the rear conveying roller (3) is used to cooperate with the rear end synchronous belt (7).

4. The code-waiting conveyor according to claim 2, characterized in that: Two first package pushing rods (9) are arranged between adjacent rear conveying rollers (3), the first package pushing rods (9) comprising a vertical rod and a horizontal rod perpendicular to the vertical rod and arranged at the top of the vertical rod, and the two first package pushing rods (9) are symmetrically arranged on both sides of the rear end synchronous belt (7); Two second bag pushing rods (12) are arranged between adjacent front conveying rollers (2), and the second bag pushing rods (12) have the same structure as the first bag pushing rod (9). The two second bag pushing rods (12) are symmetrically arranged on both sides of the front synchronous belt (6).

5. The code-waiting conveyor according to claim 4 is characterized in that: A first connecting base (10) is provided between the first bag pushing rod (9) and the first bag pushing cylinder (8), the bottom ends of the vertical rods of all the first bag pushing rods (9) are connected to the first connecting base (10), and the piston rod of the first bag pushing cylinder (8) is connected to the first bag pushing rod (9) via the first connecting base (10); A second connecting base (13) is provided between the second bag pushing rod (12) and the second bag pushing cylinder (11); the bottom ends of the vertical rods of all the second bag pushing rods (12) are connected to the second connecting base (13); and the piston rod of the second bag pushing cylinder (11) is connected to the second bag pushing rod (12) via the second connecting base (13).

6. The code-waiting conveyor according to claim 1, characterized in that: The frame (1) is provided with a first front redirecting wheel (14), a second front redirecting wheel (15) and a front tensioning wheel (16) in sequence opposite to the material conveying direction, wherein the outer edges of the first front redirecting wheel (14) and the second front redirecting wheel (15) abut against the outer wall of the front synchronous belt (6), the outer edge of the front tensioning wheel (16) abuts against the inner wall of the front synchronous belt (6), and the front tensioning wheel (16) is arranged in a slide groove on the frame (1).

7. The code-waiting conveyor according to claim 6, characterized in that: The frame (1) is provided with a rear end redirecting wheel (17) and a rear end tensioning wheel (21) in sequence along the material conveying direction; the outer edge of the rear end redirecting wheel (17) abuts against the outer wall of the rear end synchronous belt (7); the outer edge of the rear end tensioning wheel (21) abuts against the inner wall of the rear end synchronous belt (7); and the rear end tensioning wheel (21) is arranged in a slide groove on the frame (1).

8. The code-waiting conveyor according to claim 1, characterized in that: Two front-end photoelectric detection boards (18) are arranged on the frame (1) at corresponding positions on both sides of the front conveying area, and two rear-end photoelectric detection boards (19) are arranged at corresponding positions on both sides of the rear conveying area.

9. The code-waiting conveyor according to claim 2, characterized in that: A limiting plate (20) is arranged on the frame (1) at the end close to the rear conveying area.

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